138496040

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 317952000

約数和(自身を除く): 179455960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 137, 199, 254, 274, 398, 508, 548, 635, 685, 796, 995, 1016, 1096, 1270, 1370, 1592, 1990, 2540, 2740, 3980, 5080, 5480, 7960, 17399, 25273, 27263, 34798, 50546, 54526, 69596, 86995, 101092, 109052, 126365, 136315, 139192, 173990, 202184, 218104, 252730, 272630, 347980, 505460, 545260, 695960, 1010920, 1090520, 3462401, 6924802, 13849604, 17312005, 27699208, 34624010, 69248020, 138496040]

約数ペア:

[(1, 138496040), (2, 69248020), (4, 34624010), (5, 27699208), (8, 17312005), (10, 13849604), (20, 6924802), (40, 3462401), (127, 1090520), (137, 1010920), (199, 695960), (254, 545260), (274, 505460), (398, 347980), (508, 272630), (548, 252730), (635, 218104), (685, 202184), (796, 173990), (995, 139192), (1016, 136315), (1096, 126365), (1270, 109052), (1370, 101092), (1592, 86995), (1990, 69596), (2540, 54526), (2740, 50546), (3980, 34798), (5080, 27263), (5480, 25273), (7960, 17399)]